[PATCH] Force rtl templates to be inlined

David Malcolm dmalcolm@redhat.com
Tue Sep 2 14:59:00 GMT 2014


On Tue, 2014-09-02 at 00:03 -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
> 
> I noticed that with the trunk compiler a range of the new rtl
> inlines show up as hot in a profiler during stage1. I think
> that happens because stage1 is not using optimization
> and does not inline plain "inline".  And these rtl inlines
> are very frequently called.

Sorry about that.

FWIW I'm working on some followup patches for the rtx-classes work that
ought to eliminate some of the is_a_helper<> calls; I hope to post them
in the next few days. [1]

I suspect the bulk of them currently are coming from the safe_as_a
<rtx_insn *> calls within NEXT_INSN and PREV_INSN; do you happen to have
information handy on that?

Dave

[1] (I have to take the rest of today off for a family matter).



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